Error: FBSDKApplicationDelegate.m No visible @interface for 'UIApplication' declares the selector 'openURL:options:completionHandler:'

Question

我正在使用 Xcode 7.3.1 为使用 Swift 2.2 编写的遗留 iOS 应用程序实施 Facebook SDK。我安装了 Swift version of the SDK using CocoaPods according to this tutorial.

当我尝试构建项目时收到此错误：

FBSDKApplicationDelegate.m 'UIApplication' 没有可见的@interface 声明选择器 'openURL:options:completionHandler:'

以下是 FBSDCoreKit 中受影响的代码：

NSOperatingSystemVersion iOS10Version = { .majorVersion = 10, .minorVersion = 0, .patchVersion = 0 };
if ([FBSDKInternalUtility isOSRunTimeVersionAtLeast:iOS10Version]) {
  [[UIApplication sharedApplication] openURL:url options:@{} completionHandler:handler];
} 

如何在不修改 Facebook SDK 本身的情况下解决这个错误？

Answer 1

这个问题是由于使用 Swift 2.2/Xcode 7.3.1 和最新的（我发布这个 anwser 时是 v0.2.0）Facebook SDK 引起的。迁移到最新的 Swift/Xcode 8.2.1 后，问题没有发生。

Answer 2

我在 10 天前报告了这个问题，但仍然没有回复 https://github.com/facebook/facebook-sdk-swift/issues/122

Answer 3

你应该为此更新：

- (void)openURL:(NSURL *)url sender:(id<FBSDKURLOpening>)sender 
handler:(void(^)(BOOL))handler
{
  _expectingBackground = YES;
  _pendingURLOpen = sender;
  dispatch_async(dispatch_get_main_queue(), ^{
    // Dispatch openURL calls to prevent hangs if we're inside the 
current app delegate's openURL flow already
#if __IPHONE_OS_VERSION_MIN_REQUIRED >= __IPHONE_10_0
      [[UIApplication sharedApplication] openURL:url options:@{} 
completionHandler:handler];
#else
      BOOL opened = [[UIApplication sharedApplication] openURL:url];

      if ([url.scheme hasPrefix:@"http"] && !opened) {
    NSOperatingSystemVersion iOS8Version = { .majorVersion = 8, .minorVersion = 0, .patchVersion = 0 };
    if (![FBSDKInternalUtility isOSRunTimeVersionAtLeast:iOS8Version]) {
      // Safari openURL calls can wrongly return NO on iOS 7 so manually overwrite that case to YES.
      // Otherwise we would rather trust in the actual result of openURL
      opened = YES;
    }
  }
  if (handler) {
    handler(opened);
  }
#endif
  });
}